Saint Vincent, which is home to over 100,000 people, has seen no volcanic activity since 1979. La Soufriere's last huge eruption occurred in 1902, and it killed 1,000 people.
Martinique authorities also raised alarms over Mount Pelee volcano after tremors became more frequent in the past few weeks.
“La Soufriere and Mount Pelee activities are not linked. Just because a volcano erupts does not mean that others will. It is just a coincidence,” U.S. volcanologist Erik Klemetti assured.
After decades of inactivity, Mount Pelee's first tremors were reported on the island in early December. According to Martinique's Volcanological and Seismological Observatory, the volcano last erupted in 1932.